Corkscrew Water Treatment Plant Expansion, FL, USA
Key Data:
Raw water source
Groundwater (sandstone aquifers)
Current capacity
38,000m³/day
Capacity increase
19,000m³/day (to 57,000m³/day)
Main treatment stages
Aeration; lime and carbon dioxide dosing; disinfection; filtration
Filter media
Gravel / anthracite / sand
Expansion project elements (Corkscrew)
16.5m-diameter lime softening contact tank; lime storage silo and dosing equipment; four filter units; carbonisation basin; high volume air blowers; associated control systems; interconnection to Green Meadows plant
Associated elements (Green Meadows)
2 x 19,000m³ ground storage tanks; high service pumping station; new feed to existing transmission mains
Project cost
$13 million
Project Timeline:
Water project plans approved
23 April 2002
Corkscrew expansion contract awarded
8 July 2003
Project engineers appointed
18 November 2003
Completion
31 March 2005 (scheduled)
Key Players:
Owner
Lee County
Operation
County Utilities Division
Main contractor
Earth Tech
Design and engineering services
Johnson Engineering
